Check wkitshg machine



April 9, 1935. R. L.. MULLER CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 1 a MM April' 9 1935- R. L. MULLER lg CHECK WRITING' MACHINE Filed March 19, 1952 9 Sheets-Sheet 2 INVENTOR Hobr A17/aller www WSW@ ATTORNEY pri 9,1935. R. L.. MULLER www@ CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 3 INVENTOR l ATTORNEYS Apri 9 1935c R. L. MULLER www CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 4 .Il Illllllllllll l Illlllll INVENTOR ATTORNEYS April 9L 1935 R. LI MULLER www@ CHECK WRITING MACHINE Filed March 19, 1932 7545ZX Za Ag 9 Sheets-Sheet 5 S/V//LL FOL/.EPP

Il L "MINI ATTORNEYS pr 9, 1935 R. L. MULLER CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 6 April 9, 1935. R. Ll MULLER @$97,073

CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 7 INVENTOR ATTORNEYS pr 9, i935. R L. MULLER CHECK WRITING `MACHINE Filed March 19, 1952 9 Sheets-Sheet 8 Apri 9, 1935. R. 1 MULLER CHECK WRITING MACHINE Filed March 19, 1932 9 Sheets-Sheet 9 .WANO mm.

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26 Glaims.

This invention relates to a check writing machine and it is particularly concerned with the feature of printing characters to the left of the amount of a check without interfering with the s printing of ciphers to the right when such ciphers should appear in the orders in which characters are sometimes printed.

The machine disclosed is not only capable of writing a check for an amount entered on the keys oi the machine, but it is also capable oi performing certain calculating operations, such as addition and subtraction and the-making of a record thereof, and then automatically writing a check for the net amount oi the calculations. The ic machine can also be used for calculating and bookkeeping operations oi a general nature in which event certain of the check writing features are preferably disabled.

The general object of the invention is to provide an improved check writing machine.

A more particular object is to provide, in a check writing machine, an improved mechanism ior printing characters to the left of the amount ci the check without interfering with the printing oi ciphers to the right. Y

Other and more particular objects will appear from the following specication and drawings.`

An embodiment oi the invention is shown in the accompanying drawings in which:

Fig. l is a right side elevation of the machine with the parts in normal condition, certain oi' the parte having been omitted to show others more clearly. A

Fig. 2 is a partial left side elevation and section of the printing mechanism showing the position of the parts during the forward stroke of the machineand before the ring of the printing hammers in the dollars section.

Fig. 3 is asperspective view of a portion oi the printing mechanism, the parts being spread to show the invention more clearly and being in normal condition.

Fig. 4 is a partial perspective oi' a portion of the printing mechanism illustrated in Fig. 3 with the 45. parts enlarged slightly to show them more clearly.

Fig. 5 is a front elevation oi a portion of the printing mechanism showing the parts in the position they occupy during their normal condition as related to the manner in which they are controlled by the carriage.

Fig. 6 is a partial front elevation similar to Fig. 5 showing the parte in the position they occupy when conditioned by a small roll on the paper carriage.

. Fig. 'l is a partial front elevation similar to Fig. 6 showing the parte in the position they occupy when conditioned by a medium roll on the carriage.

Fig. 3 is a partial iront elevation similar to Fig. 6 showing the parts in the position they oc= cupy when conditioned by a large roll on the carriage.

Fig. 9 is a perspective view oi' certain or" the mechanism associated with the actuators and the registers at the front oi the machine.

Fig. l0 is a partial right side elevation showing how the invention is associated with the printing mechanism, the actuators and the register, the parts being shown in normal position.

Figyll is a View similar to Fig. l0 showing the l5 position of the' parts during an operation of the machine with the mechanism set to cause the characters to be printed in certain orders of the machine. f

Fig. l2 is a partial right side elevation of a 20 species of the invention in which the control is through the amount keys instead oi through the paper carriage.

lig. i3 shows several samples of work that may be performed on the machine.

The machine embodies, in its general construction, many of the parts oi the Burroughs calculating machine and, since these are well known in the art and described in numerous prior patents, they will be mentioned only briei'ly.

Generell construction Referring to Fig. l, the machine is provided with a plurality of banks of depressible amount keys 29i, the number ci banks being varied to 35 suit the requirements. items are entered by depressing these keys and, as each key is depressed, lits stem rocks a small bell crank lever 2H which pulls a stop wire 2l@ into position to arrest the downward movement of its actuator rack 6H?, 40 there being a plurality of these actuator racks of dierent orders corresponding to the banks of amount keys. When a key 299 is depressed its bell crank lever 2li moves the key locking slide 2H rearward where it is latched by a de- 45 tent 228 (Fig. l2) until released by the restoring bail 229 near the end of a machine operation. Rearward movement of key locking plate 2M for a given bank rocks the latch l5 for that bank counterclockwise to release the actuator GIU for 50 said bank. The actuators do not move downward until further released by movement oi the releasing bail 6 l 'l which extends across the machine under arms 6H connected to the actuators.

During the forward stroke oi the machine the bail @il is rcckedcounterclcckwise from the position of Fig. l and, during the return stroke, it is returned clockwise to the position shown in said gure. This movement of the bail is under the control of a cam dit xed to a shaft d@ that has a crank fastened to it which is connected through springs it@ to a crank on the main drive 'shaft itil.,

Suitable registering mechanism is provided in the form of two sets of pinions @it and @its fo a tumbling register that may be used for addition and subtraction. This registering mech is rocked into and out of engagement with the actuators by a pitman siii and arm titi in a manner that is well known in the art and which need not be described here. Likewise, the control of the tumbling" register for addition or subtraction is well known and an understanding of it is not necessary for an understanding of the present invention. Suitable totaling and sub-totaling mechanism is provided under the control of the total key T and the subtotal key ST respectively, these keys serving to operate link @il to control pitman siii.

The machine has a traveling paper carriage C which moves across the machine in one direction under the influence of a Spring drum D and which is automatically returned by a motor in the manner described in Rinsche Patent No. 1,580,534. The carriage is provided with a tabulating mechanism E by means of which it may be tabulated from column to column so as to occupy dierent columnar positions which are under the control of the operator or the paper carriage, as may be desired.

The machine also has an automatic repeat mechanism (not shown) such es is fully described in Muller Patent 1,397,774 which causes the machine .to automatically go through a series oi operations after it has been set into operation in a predetermined columnar position of the carriage.

Printing mechanism lThe hine is provided with a printing mechanism having a plurality of type c members of 'different orders which are diierentially positioned at the same time that the actuators are positioned. The type carrying members are the arms or segments @i i which are connected at their forward ends to their respective actuators by a pin and slot connection that enables the segments to move a limited amount relative to the actuators under certain conditions. The segments dii carry a plurality of movable types @it at their rear ends including digit types which range from to 9, inclusive, and, in the present invention a special character type also (Fig. 9).

en the bail I il is moved downwardly during a forward stroke of the machine under the inuence ofits cam dit, the type segments til move a step relative to their actuators under the inuence of vsprings 511ia and the type segments, together with the actuators, then continue their downward movement until arrested in diiereninial tions normally determined for each order by the respective stop wires 2li@ that have been moved to position by depression of the amount keys. On return movement of the restoring bail eil, the type bars and actuators are moved upward again and restored to their no position shown in Fig. l except that, in the event a transfer occurs in any order, the actuator in said order is given an extra step of movement owing to the fact that the transfer pawl iid is rocked so that Leonora it will not limit the upward movement oi the actuator rack through engagement with the stud i i d on said rack.

v 'lhe haer operating means for the printing mec is of the general type illustrated in Burroughs Patent No. 505,078, with improvements described in Putnam 1,018,37i. Briey, this is es follows:

After a type segment is positioned, the printing mec is operated to re the u :un lie which strike the types @it that are in printing psition. The hers lili are pivoted at 'iti (Fig. 2) and each is nred by its respective V1: member lie pivoted on the shaft iii and urged counterclockwise by a spring lilo. Each ring member is ,norm held against movement by a trigger l i li that hooks over the pointed upper end of the ring' member lid as il1us` trated in Figs. l and 2. en the ger ior any bank is released, e nring member iid for that bank is suddenly snapped countercloce as viewed in Fig. 2 by its spring i353 and a stud iiii on the ring member operating in a slot lid in the corresponding haer lid hres the mer rearwardly toward the platen.

i e is enlarged near its inner end so or forcing action takes place the movement 0f m8 il. .2. WSI; meer, me momentum of the her being depended upon to carry it to prin position. cocfor the p of enab prin to be by controlling the movement or the members liti. li these .f:: -1 members are restrained from sudden movement and are allOWed O move Only g''iduny, th@ anni imeS 'M5 will not be given any momentum and they not move to their dnal printing positions. "i action is called wa out the .1f ..2 Y and is described in detail in Pu 11,018,371.

e triggers lili are rel by their respeo tive pawls iid (Fig. 3) pivoted on a shaft lilfl (Fig. l) ed by the upper ends of two lili tmf; are pivoted on a shari; liiil, one or sai being illustrated in Fig. i. The lower end of the arm lili illustrated in Fig. i ds down into the path oi a stud @ed (Fig. 2) on the plate dei that operates with the shaft 360 and the pitman controlling @i3 (Fig. l).

Near the end oi each forward stroke of the machine, during which stroke the plate @di moves counterclockwise toward the tion oi Eig. 2, the stud siii) engages the lower end or e iii to rock it clockwise to thereby all the pawls liti forward to release their ers liil by roc th cloc, thereby nig the iring members lit for sudden action. re lease occurs in all orders in which thetype seg ments dii move to diderenal positions greater than their 0 positions. ln the orders in which the sents Sii do not move farther their "0 position the tails of the pawls liti engage shoulders Y l) on the segments Sii before the triggers lil are released and these shoulders act to cam the pawls lid clockwise to move their ends out or the path of the shoulders on triggers lil so that the triggers in these orders are not released as the pawls Hi8 are moved. prevents operation or the wi e' 5mt-:wim in all in which no amount keys are depr u and, normally, no or ciphers are printed to the left of the lut order to the left in which an cunt key is depressed. However, it is we mry to print ciphers in orders to the right and this is accomplished by providing the triggers Patent No.

'lll with tails 9 '(Fig. 5) which overlap to the right so that when the trigger in any order is released it will release all of those to the right of it that are not released by their own pawls. Accordingly, the triggers in orders to the right where "0s are to be printed will be fired along with the triggers in the other orders where digits are to be printed.

The fixing members 'H6 are restored by a bail 10Q (Figs. 2 and 3) carried by two side arms 'H2 pivoted on the shaft N2. One of these arms M2 is connected by a link 832 (Fig. 2) with the plate 8M that oscillates with the shaft 80G. During the forward stroke of the machine, the arms H2 are rocked counterclockwise (Fig. 2) which moves the bail 109 out of engagement with the tails of the firing members 'H6 so that they are free to move under the action of' their springs 180 when the triggers H1 are released. During the return stroke of the machine the arms 'H2 are rocked clockwise during which movement the bail 109 engages the tails of the firing members H6 and moves them back to normal.

Operating printing mechanism to the left of the last order to the left in which an actuator raekismoned The printing mechanism just described is normally conditioned so that it is disabled in all orders tothe left of the last order to the left in which a key is depressed or an actuator moved during a machine operation. In order to print characters to the left of the amount of a check, it is necessary to have the printing mechanism operate to the left of the last digit that is printed and this requires a special control of the printing mechanism. During the description of this mechanism reference will be made, for convenience, lto printing characters to the left before the means for indexing the mechanism for this purpose is described. It will be understood that the indexing mechanism will be eventually explained.

The printing mechanism is automatically conditioned for this purpose by the paper carriage and the control partakes or' some of the features disclosed in Gascon Patent 1,395,991, but differs therefrom in a number of particulars that will be described.

Referring to Fig. 1 the paper carriage is provided with a plurality of rollers It of varying sizes, small, medium, and large, which act on the arm II of a pivoted yoke I2 having another arm E3 connected to a pivoted member It. Connected to the upper end of the member I6 is a link I5 (Fig. 2) in the form 'of a rack having teeth that mesh with a pinion i6 (Fig. 3) xed to a cam shaft I'l. The rack i5 is urged to the left as viewed in Fig. 1 by a spring I8 (Fig. 2) and it normally occupies its Fig. l position. When one of the rollers III on the carriage engages the arm II the yoke I2 is rocked which, in turn, rocks the arm I4. This moves the rack I5 to the right in Fig. 1 a distance corresponding to the size of the roller, the rack preferably having four positions as indicated by the four notches in its lower edge with which a locking device cooperates to lock the rack in its various positions, said locking device not being illustrated but being shown in said Gascon patent.

The cam shaft I1 carries a plurality of cams I9 best illustrated in Fig. 3 and these cams, in the dierent positions of the cam shaft, act on the printing mechanism in different orders as will be later described.

Each of the triggers IIT (Fig. 3) has a link 2B pivoted to it which extends forward and the forward end of each link is forked to straddle a notched shaft 120 (Fig. 2) which serves to guide the links. Pivoted to each of the links in the seven right-hand banks of the machine is a member 2l, each member being urged counterclockwise by a spring 22. In order to distinguish between the elements for the different banks or orders, these banks will be referred to as the first, second, third, fourth, etc., banks, or orders, the numbering being from right to left as illus- `trated in Fig. 3. Each of the members 2l except those in the rst and sixth banks acts as a latch and these members will be hereinafter called latches.

When the machine is operated under normal conditions for ordinary calculating operations, the links 20 with their latches 2l move forward when their triggers lll are rocked clockwise and the printing mechanism operates in the normal way to print the amount of each item and to print ciphers to the. right in all banks to the right of the last bank to the left in which a digit is printed.

In order to eliminate printing in certain orders orbanks, the cam shaft Il is turned to cause the cams It to move selected latches 2i downwardly against the tension of their springs 22.' When these latches are moved downwardly, the resulting action is different in different orders because of certain special constructions hereinafter described, but, for the present, a description of the action in the seventh bank will be sumcient.

When the latch 2l in the seventh bank is depressed its shoulder 23 projects into the path of a bail 2d pivoted at 25 and urged counterclockwise (Fig. 3) by a spring 26. Each of the arms of the bail has a rearwardly extending projection carrying a stud 2l that is positioned to engage the cam edge of the respective arms M2. l't will be recalled that the arms lf2 are oscillated at each operation of the machine, their movement in Fig. 3 being rst counterclockwise from the position there shown during the forward stroke of the machine. After they have reached the limit of their movement in that direction, they are returned clockwise to the original position. Accordingly, as the machine operates, the bail 24 is rocked forward or clockwise (Fig. 3) at the beginning of the forward stroke of the machine and, if any of the latches 2l have been pushed downwardly so that the shoulders of said latches, as for example, the shoulder 23 of the latch 2l in the seventh bank, is in the path of the bail, said latches will be pulled forward and they', in turn, will pull forward their links 20 and trip their triggers 'l il. This tripping action occurs at the beginning of the forward stroke of the machine because the bail 24 is rocked as soon as the arms H2 start counterclockwise at the beginning of the forward stroke. Accordingly, the firing members 'HS in the orders in which the latches 2 Ir have been moved forward are released at the beginning of the forward stroke of the machine instead of near the end of it as in normal operation. The released firing members cannot immediately move to re their hammers 'H5 because the restoring bail H09 has not yet moved upward to free them. The firing members can only move to firing position as the restoring bail moves and it moves relatively slowly. 'I'he result is that the firing members do not move their hammers H5 with sufficient force to give them enough momentum to effect a printingl action. In other words, when one of the latches 2l is pulled forward at the beginning of the forward stroke of the machine, the printing mechanism for that bank is disabled and printing in said bank eliminated.

The printing of characters to the left of an amount of a check must take place under all the different conditions that may arise in check writing. For example, a check may be for cents only, or for one dollar, or for a thousand or more dollars. Also, the dollars only are written in one place on the check without writing the cents, and the cents are written in another place without writing the dollars, and both the dollars and the cents are written at a third place on the check. These conditions require special control of the printing mechanism Printing to left where dollars only are to be pn'nted This subject will be rst treated with respect to the control in the column where dollars only are printed even though the check is to also include a certain amount in cents.

When dollars only are to be printed, it is necessary to disable the printing mechanism in the cents order and to provide for printing characters to the left of the last digit to the left in the dollars orders.

The medium roll l on the carriage controls this condition and it is positioned so that, when the carriage reaches the column where dollars only are to be printed, it acts through the connections heretofore described to move the cam sht il to the position shown in Fig. 7 where the cams i 9 in the second, third, fourth and fifth orders depress the latches 2l in said orders or banks. The

" latch 2l in the second order, which is the tens of cents order, has a lateral lug t@ (Fig. 3) which is adapted to be positioned in the pathof the bail 20 that is operated to walk out the printing mechanism. The cam is in the second order is of suiiicient length to depress the latch 2l in `said bank so as to position the lug @il in the path of the bail 20 and hence, when the machine is operated, the latch 2i in the second order will be moved forward and the hammer M in that bank will be walked out Referring to Fig. 5 it vwill be noted that the triggers lll in the rst and secondl orders are connected together by a stud ill so that, when the trigger lll in the second order is walked out as above described, the trigger in the rst order will be walked out also and printing is thus eliminated in both of the cents orders. This prevents the printing of cents in the column where dollars only are to be printed.

Referring to Fig. 3, the latches 2l in the third, fourth and nfth orders each carry a lateral stud 32 adapted, under certain conditions to engage the laterally bent front ends 33 of the links 20 in the fourth, fth, and sixth banks. When any one of the latches 2i in the dollars orders is moved downwardly by the cams I9, the stud 32 of said latch is moved down so that, if the latch is moved forward its stud will engage the bent end 33 of.

the link 2t in the order immediately to the left of it. The number of banks provided with studs 32 can be varied to suit the requirements, three being shown in Fig. 3. The latches 2l in the fourth, fth and sixth banks are not provided with shoulders 23 such as possessed by the latch 2i in the seventh bank. When thel machine is in the column where dollarsonly are to be printed, the latches in the third, fourth and fth orders are all depressed. e that one of the type a nooners segments in the dollars orders has been indexed, as, for example, the rst or units of dollars order which is the third bank from the right. The printing er in this order is conditioned for iiring in the usual manner, at the end of the forward stroke of the machine. The forward movement of the link in the third bank during the cooking operation moves the latch 2l of said bank and those of the fourth, fth and sixth banks forward so as to re the hammers in all of said banks. This causes a digit to be printed in the third bank and causes printing in the fourth, th and sixth banks and, as will be later explained, this printing is of special character.

From the mechanism so far described it will be clear that the operation of the printing mechanism to the left is effected by the mechanism in the dollars orders which causes operation of latches to the left. But a special condition arises when a check is for cents only.

When the amount of the check is for cents only it is, nevertheless, necessary to print characters in the space where dollars only are to be printed,

as shown, for example, in check No. 1001, Fig. i3.

The mechanism just described depends for its operation upon the indemng of one of the dollar type segments so as to cause firing of a latch in at least one of the dollars orders. mechanism would not operate to print characters to the left if this indexing did not occur and it would not occur if the check were for less than $1.00. To meet this condition the printing of characters to the left when no dollars are to be printed is placed under the control of the cents orders.

As shown. in Fig. 4, the lateral lug tt on the latch 2l of thesecond or tens of cents order is provided with a stepped plate 35 having an upper shoulder S35 and a lower shoulder 3l. These shoulders are adapted to contact the laterally bent end 38 (Fig. 3) Of the latch 2H in the third or units of dollars order. This latch 26 in the third order has a shoulder dt adapted to engage the lateral lug on the latch 2l of the second bank under certain conditions hereinafter described but, when the latch 2l in the second 1H.:- 1: is moved down by the cam it as shown in Fig. 7, the lug 3@ is moved out of the path of the shoulder tt and the shoulder 36 of the stepped plate is moved down so that it is in position to contact the laterally bent end il@ of the latch 2i of the thirdbank. As will be clear from Fig. 3, the shoulder 3@ is spaced from the bent end @t of the latch 2l of the third bank when the parts are in their normal unoperated position.

The latch 2l in the second bank is moved forward by the bail d during the forward stroke of the machine under the conditions being described, that is, with the cams it depressing the latches 29 in the second, third, fourth and fifth banks. 'Ine initial forward movement of the latch 2l in the second bank, which is for the purpose of walking out the er in said bank, does not cause the shoulder 3@ to engage the bent end t of the latch in the third bank, but such engagement occurs near the end oi the forward stroke of the machine and at a time such that a ring action will take place in the third The cam edges of the arms H2 that move the bail 26 are shaped so as to rst move the bail suddenly. Ilie cam edges are then concentric with their pivots so that no further movement of bail 2Q by the arms 'it occurs during the maior portion of the forward stroke of the machine. However, the forward ends of the cam edges of the arm l l 2 are provided with raisedportions lt which, near the end of lil banks are released. Inasmuch as the triggers lil in the second and lrst banks are connected together, the triggers in both of the cents orders are released along with the triggers in theA dollars orders. These cents order triggers will also be iired at this time by reason of the trigger in the X bank because, usually, the e is conditioned for total taking when the carriage is in position for printing the total amount of the check. Y

In case' the check should be for an amount in cents only, special characters must he printed to the left of the cents orders. Under this condition, the printing mechanism in the cents orders is indexed and, as'the latch 2i of the second bank moves forward, the shoulder 37 on the stepped plate 35 engages the bent end t@ of the latch 2i oi the third bank, or rst dollars order (Fig. 6) near the end of the forward stroke of the ma-1 chine and hres the printing mechanism in the third bank at the same time that the cents order printing mec is red. Inasmuch as the units dollars order printing mechanism is connected to the orders to the left of it, printing occurs in these banks also. v

' Check writing operations (The operation of the machine in the writing of checks be varied, but the following is typical:

When the chine is to be used for `writing checks only, the blank checks are placed in the paper carriage either one at a time or in the form of a strip. .The names of the payees are already printed on the check. The amount of the check is entered on the keys and the machine given a stroke of operation which results in entering the amount of the check in one of the regis-V ters. The printing mechanism is operated to print this amount, but the check is preferably not under the printing mec in this carriage position so that nothing appears on the check. If it is desired to keep a recordof the amounts of the checks, a record strip may be placed in the machine in position to receive the impression ci the printing mec during the above operation. After the amount of the check has thus been entered in a register, the carriage tabulates to its next position which is the position for printing dollars only. In this position the machine is conditioned either by hand or automatically for the taking of a subtotal, so that -when the machine is operated, the printing mechanism will be operated to print the amount of the check. But, because of the medium roller that operates as already described, the printing mechanism in the cents orders is disabled and the amount of the check in dollars with characters to the left is printed or, if the check is for cents only, then characters only are printed.

lAfter this operationv takes place, the carriage tabulates to its next position where the cents only are to be printed. Here again, the machine is conditioned for the taking ofa sub-total and the printing mechanism will be operated but, by reason of the large roller that is active in this position, the printing mechanism is conditioned dollars and cents is printed. In this columnar position of the carriage, the machine is preferably conditioned' for total-taking which will Leonora cause the printing mechanism to be operated and the register to be cleared. The "smal1 roller is active in this position to condition the printing mechanism so as to print the total amount of a check and to operate the printing mechanism in banks to the left of the last bank to the ieit in which a digit is printed no matter whether this last bank to the left is in the tens of cents order or in the dollars orders.

After a check has been written as above de' scribed, the carriage automatically returns across the machine to its original position for the writing of another check.

In the event the machine is to be used for ledger posting or other bookkeeping operations in combination with checkwriting, a ledger sheet is inserted in the paper carriage at the same time that the check blank is placed therein.

The machine is then conditioned to receive a given item which is entered in the register and printed on the ledger sheet. The carriage then tabulates to the next column where another item may be added or subtracted to the amount in the register and recorded. The carriage then tabulates to a third column where a sub-total of the amount in the register is taken and printed on the ledger sheet. In this column, the printing mechanism is preferably conditioned in the same way as it is in the column where the total amount of the check is printed so that when the total is printed on the ledger sheet it will have characters to the left of it the same as the check.

After the total has been printed on the ledger sheet, the machine preferably goes ahead automatically to write the check without requiring any attention on the part of the operator. This is accomplished by providing the machine with an automatic repeat mechanism such as disclosed in Muller Patent No. 1,397,774 which causes the machine to go through a series of operations automatically. In fact, the machine continues to operate and the paper carriage continues to tabulate to the various positions for check writing and the carriage returns across the machine to its original position without requiring any attention.

The machine can also be used for check Writing when it is not desired to take totals or suhtotals. In this event the amount keysV that are depressed at the time the amount of the check is entered are held depressed throughout the various operations by means of a repeat key mechanism which has not been illustrated as it is well mown in Burroughs machines. The carriage then tabulates or can be tabulated from column to column in check writing in the manner heretofore described and the small, medium and large rollers operate as already explained.

The printing mechanism is indexed in this case by the depressed amount keys rather than by the register.

The description thus far has referred to special character printing without indicating how the printing mechanism is indexed to print these characters, because it has been necessary to un,-

derstand the operation of the printing mechanism before the indexing for special characters can be clearly understood. The mechanism for properly'indemng the special characters will nowbe described.

Special character indexing As previously explained the connection between the type carrying members and the actuators is such that the type carrying members may move a step relative to the actuators even thoughy liti . isomers the actuators are not moved. This allows the 0 types to be moved to printing position in the orders in which the actuators are not moved during an operation of the machine. There are two conditions under which the actuators are not moved. First, when printing occurs in total or subtotal taking, the actuators do not move in the orders where the register pinions are at zero. Second, when printing occurs of an item entered in the amount keys, the actuators do not move in 4the banks in which no amount keys are depressed.

The orders to the left in which the printing mechanism is actuated through the connections heretofore described are orders in which the actuators are not moved during a machine operation and these are orders in which the type carrying members would be positioned to print zeros at the time the printing mechanism operates. lt is not desired to print ils to the left ci the last digit to the left because Os are not distinctive enough and could be changed on a check. Also, they are confusing. li special characters, such as asterisks, were to be substituted for the ils on the type carrying members, the desired result of printing characters to the left could be accomplished, but the dimculty is that, when a check of large amount is printed in which some oi the dollars orders to the right are to be represented by ils, asterisks would be printed instead ci "ils and the amount oi the check would not be clearly defined. The present invention provides a solution for this problem.

Mounted at the iront oi the machine (Fig. li is a yoke-shaped bail pivoted at el on the man chine trame plate This bail. carries a series of bearing brackets which are ked to it and which extend toward the machine, there being a bracket in each order ci the machine in which a control for special characters is desired. ln the embodiment of the invention illustrated, bearing brackets have been shown in four orders, namely, the third, fourth, fifth and sixth orders or banks from the right oi the machine when viewed as from the iront. Tllese are the units, tens, hundreds and thousands of dollars orders. lt will be understood, of course, that other orders can be chosen and a greater or less number oi banks can be provided with bearing brackets Pivoted on each oi the bearing brackets is a bell crank lever t@ (Fig. lo) urged clockwise by a spring 55 connected at one end to the bell crank lever and at its other end to the bracket 53. The clockwise movement of the bell crank lever is limited by its engagement with the edge 5@ or bracket 53. One arm 5l! of the lever tid vextends substantially horizontally toward the machine and this arm has a bent end or lug 5@ that '.orms a ieeler for the register pinion dit of its respective order.. Each of the register pinarmed lever $3 fastened to a short shaft et located between and pivoted in the stationary plates 2id (Fig. 12) oi the machine. The lever G3 has a rearwardly extending arm 65 provided withl a shouldered nose St adapted to engage under the stud Gil on the type carrying member tl l.

The parts just described normally occupy the the three-armed lever @d is held in the position of Fig. 10 bythe bell crank lever 5d. The mechanism will be referred to as a latching mechanism because it 'is operable to latch the type carrying member til against counterclockwise movement as illustrated in Fig. li.

.in orders in which characters are to be printed, the type carrying membersiiii are provided, in the usual manner, with digits from il to 9, inelusive, but the top type, instead of carrying the "o and the l type only, carries an additional point Gt for printing a special character, which in the embodiment illustrated, is an asterisk. The type point is positioned so that, when the type carrying member @i i is in its normal position at the time the machine is at rest, the special character is in position for printing but, when the machine is operated and the type carrying member moves a step relative to its actuator, the o type will be moved up to printing position the actuator is not moved. if the actuator is moved Means is provided for moving 'the iatching mechanism to latching position and, in the embodiment illustrated, this means is actuated by and automatically controlled by the paper carriage. Referring to lig. i, it will be observed the yoke-shaped bail has a downwardly ei:- tending arm it to which is connected a spring that urges the bail in a counter-clockwise direction. Connected to the lower end or the erm l@ is a link lil whose rear end is connected to an arm 'i8 liked to a shaft lli on the base oi the machine. 'lhis shaft has another arm i5 extending rearwardly and provided with a stud 'it operatingl in a slot in the end ot a link on a lever i8 pivoted at itl to a bracket on the base oi the machine. There is a yielding connection between the arm l5 and the lever le comprising a spring t@ connected between the stud it on the arm l5 and a stud di on the lever lil. The rear end oi the lever lli is connected to a vertically movable slide t2 having a stud on its upper end adapted to be engaged by suitable cam slides 8G (/Fig. iii on the rod @il on the paper carriage. When the carriage reaches predetermined columnar positions a slide @d engages the stud il@ which pushes the slide t2 downward. This rocks the lever l@ clockwise and the latter, through the spring dit, moves the arm l5 counterclockwise. This causes the counterclockwise movement of shaft M and arm iii with the result that the link i2 is thrust forward and the bail is rocked clockwise on its pivot 5i.

When the bail e@ is rocked clockwise, the bearing brackets 53 are likewise rocked in this direction and this carries the bell crank levers dit bodily .counterclockwise about the axis of pivot it, at the time this occurs, theregister pinion in a given order is in its "0 position, the bell crank lever 5d in that order will be moved to the position of Fig. il and this lever will rock its threearmed lever e3 counterclockwise so that the nose 66 will move under the stud 6l on the type-carrying member iii i.l This latches the type-carni;- ing member against movement relative to its actuator so that, when the machine is operated,

the type-carrying member will not move its-usual step relative to its actuator with the result that instead of the bell crank 56 rocking the threesoA ed lever 53 to latching position, said bell crank and its lever @3 will be held in their inactive position because of the bent end 5t engaging the periphery of the disk t@ and no latching of the type-carrying member will occur. Accordingly, in all orders in which register pinions are not at 0, the type-carrying members will not be latched against movement relative to the actuators and said members can move their entra step of movement to il position or beyond to position "0s and/or to position the proper digit types for the digits for which the actuators are indexed.

Having in mind that the printing mechanism is operated in orders to. the left of the last order to the left in which. an actuator rack moves, it will be clear that special characters will be printed in theseorders to the left in which the'printing csl. in'. is Opmted. Y

Other conditions must be considered, however. Assume' that a check is to be written for an amount such as $1,000.00. when writing such are also orders in which the actuators do not move and in which the register pinions are at zero at the time the machine operation takes place. With the mechanism described up to this point, special characters would be printed in these orders instead of 0, so that the check would read alwo. Provision has been made to avoid this by mech as follows:

Referring to Fig. 9, it will be observed that the third arms e@ of the three-armed levers 63 extend forwardly and the forward ends of these arms are provided with overlapping projections @l to the left. This means that, if any of the threearmed levers or latches @t is held in its inactive position, all of the latches to the right of it will also be held in inactive position even though the other portions of the mechanism for these latches may be conditioned to have the latches moved tolatching msition. In the example given ($1060.00), the register pinion in the thouds of dollars order is not in 0 position at the e the printing operation takes place, hence the latch 63 in the tho oi dollarsorder will not move to latching position. The thousands latch will hold out lthe latch in the huns of dollars order, the latch in the hundreds order willhold out the latch in the tens of dollars order, and the latch in the tens'order will hold out the latch in the units of dollars order. Instead oi these latches moving to position to latch the type-ca members in character printing position, they will remain in their disabled or inactive position and the type 1| r www will move relative to their actuato so as to tion the "0 types for printing. In this way "0s are always printed in their proper :nooners places to the right under conditions that demand such printing and this occurs without interfering with the printing of specialcharacters to the left.

ln the writing of checks, the carriage control cams 8G are preferably positioned so as to act on the latching mechanism in columnar positions where totaling or subtotaling is to occur, it being recalled that while the check is being printed, the machine goes through subtotaling and tot-aling operations in dierent columns. The tabulation of the carriage from one column to another occurs at the end of the return stroke of operation. Hence,` immediately preceding a subtotaling operation the carriage moves to the columnar position where the subtotaling operation is to be performed. 1n the machine described the adding register is normally in engagement with the actuators before the machine operates. At the beginning of operations in addition it is rocked out of engagement with the actuators ediately, but during totaling or subtotaling operations, it is allowed to remain in engmement with the actuators during their descent. Accordingly, at' the time the paper carriage moves to its total or subtotaling position to actuate the latching mechanism, the register is in engagement with the actuators and the latching mechanism will be controlled by the position of the register pinions at that time. In the orders where the register pinions are at 0 the type-carrying members will be latched in character printing position. In the other orders no such -latching occurs. While the register pinions in said other orders may eventually be rotated to 0 by the totaling or subtotaling operation, the actuators and typecarlying members will have moved downwardly far enough in the meantime so as to be beyond the latches and hence, even though the latches are moved to latching position when the pinions reached their 0 position, no actual latching of the type-carrying members occurs because such type-car members are out of the range of the latches;

Key control of special `characters to left For certain kinds of work it is not desirable to print the amounts of checks by a subtotal and totaling 4operation of the machine, but to print checks for amounts entered on the amount keys. A diierent species of the invention has been shown for this purpose and, in this species, control of the printing of special characters to the left is placed under the amount keys on the keyboard. This species is illustrated in Fig. 12.

The type-carrying members 6H are the same as those previously described and somewhat different shaped three-armed levers or latches @8 are provided for these type-carrying members in -the orders in which it is desired to print special characters. These latches dier from those heretofore described in that'no provision is made for controlling them by the register pinions. The latches are urged in a counter-clockwise direction, as viewed in Fig. 12, by springs it@ so that their normal position is a latching position with the noses te under the studs tl. The type-carrying members @il are thus normally latched in character printing position. Overlapping projections el are provided on arms t@ so that, when any `particular latch is held in unlatched position,

all latches to the right of it, or in lowerorders, are likewise held in such position.

In this species each of the latches @t has an upwardly extending projection it positioned behind a downwardly extending lug E02 on the key locking plate 2M of its bank. Whenever any of the amount keys in a bank is depressed the latch plate 2 i6 for that bank is moved rearwardly and lield in rearward position by the detent 228 until near the end of the return stroke of the operation when the restoring bail 22e releases the detents 22e to enablethe latch plates to move forward to normal position.

With this construction, when an amount key in a given bank is depressed; the key loc plate for that bank is moved rerdly and tbe latch.

G53 for said bank is moved clockwise to released position so as to permit movement of the type carrying member of said bank relative to its actuator to therebi7 enable the proper digit type to be positioned for the key that laas been de-a pressed.

However, in any bank to the left or the last bank to the left in which an amount key has been depressed, the latciies will not be released and the type carrying members in said banks will be latched against movement so tiret die special character types will be positioned for printing in said banks.

' No amount keys are depressed in banks to tire left of the last bank to tire leit in which a key is depressed for writing-a check and no actuators are moved in said banks to the left during a nuwcliine operation. But the printing mechanism is operated in said banks to tbe left by reason oi the construction heretofore described, the cara riage being provided with suitable rolls for purpose. Special characters will tinus be printed in the orders to tide left oi tbe amount of tire check. Sucia speciai characters will not be printed to tlie riant or the last digit to the lett even though amount keys may not be depressed in some of tlie banks to tire right. 'Flin is true because tire overlapping projections @i on tire latches will cause all latciies to the rient oi' any particular laten that is released to be released with it.

in this way the printing oi special characters occurs in banks tothe left oi tire lent bank to tite lett in wliicli a key is depressed, or to put in another way, to tire left of tire last to the left in which an actuator rack is moved during a machine operation.

lt is sometimes desirable to use time machine for operations other tnan check in wbicii event it would not be convenient to leave special characters printed at any time as these would appear in columns where iis should appear. Accordingly, provision nos been made for dise bling all of the lat/clics nach oi tnese latches is provided witii a stu-d i653 positioned to be engaged by a cano UQ@ on an arm tot oi a yoke-stiaped bail te@ mounted at the front oi the niacliine in the @me manner as tne bail 5@ heretofore described. vlluls bali lilas a downwardly extending arm i @l to wbicn a spring it@ is connectedl that normally tbe bail in the position of Fla. l2. Tine is conn nested bya link i2 to a series of and levers similar to "those heretofore described and con@ trolled by tne paper carriage and identidad by the l the latches t3 in latclied position, tiie cams op.

reference numerals lil, l5, lll, it and (Fic. l), Cams et o n the paper carriage are tioned so that, in columns where it is not desired to bave crate to rock the bail tot clockwise whereupon time cam surfaces lo@ on the .o it rock all oi the latches 63 clockwise to disabled positiono As soon as the carriage moves away from the particular column where this occurs, the parts will return to normal, unless the next succeeding column is also one where it is desired to have the latches disabled, in which event the latter column is also provided with a suitable control com on the carriage. The latches are thus autom matically disabled in certain columnar positions of the carriage.

Examples of work Several typical examples of work are shown in Fla. i3, which will be described briey.

The first example involves the writing of a check for cents only. The amount of 50e is rst entered on the amount keys and the machine operatedsto print 59o in the proper column on a ledger sheet, the amount being added in the register. at the same time the number of the check is printed by a consecutive numbering mechnot shown.

Toe carriage then tabulates to the next colwhere an addition of 20c is to be made. amount is entered on the amount keys and, when tire machine is operated, it is printed in the appropriate column and added in tbe register.

Tue machine then tabulates to a column where a total is to be printed. The subtotal key is depreased and the machine operated in this colwnereupon tlie total is printed and special characters are printed to the left in all of the dollars col. Tire printing mechanism is operated in these dollars columns by the special coi'naections heretofore described and characters are instead of Os because tbe paper carriage is provided with suitable earns to condia tion tbe lato mechanism in a manner here tofore described. Y v

After tide total is printed on a .ledge slueet the machine continues to operate automatic and tabulates from column to col under the control ot tide automatic repeat mechanism,

Widen tide carriage reaches the column where tite amount ci tbe check in'dollars is to be printed without printing tbe cents, the machine is con L ditioned for subtotalina and the carriage control of tine printing mechanism conditions said so that it is operated in the dollars column only and special characters are printed tlie orders, the carriage being provided witn a suitable cam to control tne latcliing mech in this col also.

Wnen the carriage reacnes'tlie next col where tire cents are to be printed without the dollars, tire machine is again conditioned for eubfa totaling and the printing inecism is again con= ditioned for printing. ln this col, tbe prlntc ine mechanism in tlie dollars orders. is not op= @rated so that neither special characters nor ci= pliers appear in tbe dollars order.

Toe machine next tabulates to tlie col where the amount of the check in botb dollaro and cents is to be printed. The machine is con ditioned for totaling and the printing .1. m is conditioned for printing both dollars and cents in ma Trie latching mechanism. for controding the printing of special characters it conditioned so that special characters be pted in the orders to tile left ci the last order' to the lett in which a'digit is printed.

The next example involves the printing of a check for $5.25. 'line operation is substantially the e as above described except that, in the col on the check where dollars cnw are to be printed, the control of the printing mechanism is slightly diierent than where no dollars are to be printed, but this has been described and need not be again explained in detail. So far as the printing of special characters to the left is concerned, this occurs in .orders to the left of the units of dollars order in the same manner as in the first example, such special character not beingA printed in the units of dollars order because the type carrying member in that order is indexed to print 5.

The next example involves the printing of a check for $50.25. Here again the operation is substantially the same as in the first example and, as far as the control of the printing mechanism is concerned, it is exactly the same as the case of the check for $5.25. In this example, however, it is necessary to print a 0 in the units of dollars order instead of a special character and this is accomplished by reason of the fact that the latch in the tens of dollars order is not permitted to latch its type carrying member to its actuator and said latch disables the latch in the umts of dollars order so that a 0 is printed in the units order instead of a special character.

I claim:

1. A calculating machine having a plural order differential mechanism, a printing mechanism having plural order type-carrying members controlled by said dilerential mechanism and supporting types including a zero and a special character type, said type-carrying members normally occupying positions relative to said diierential mechanism for printing special characters but being releasable for a limited movement relative to said mechanism as the machine is operated to thereby enable said type-carrying members to move. to position to print zeros in the orders in which the differential mechanism is not moved during a machine operation, and means preventing said limited movement of said type-carrying members in all orders to the left of the last order to the left in which the dierential mechanism is moved during a machine operation to thereby position said type-carrying members in said lefthand orders toprint special characters in said orders instead of zeros.

2. A calculating machine having a plurality of banks of depressible amount keys, a plurality of actuators movable to diierential positions during a machine operation, type segments carrying types including digit types and a. specialcharacter type, connections between said type segments andactuators enabling said typesegments to move a limited amount relative to said actuators during a machine operation to thereby enable the type segments in the banks in which a key ls depressed to move to position to print the proper digits corresponding to the depressed keys and the type segments in the banks in which no keys are depressed to nove to position to print zeros in said banks, and means preventing said limited movement of said type segments in all orders to the left of the last order to the left in which a key is depressed to thereby position the type-carrying members for said orders to print ,special characters instead of zeros.

3. A calculating machine having a plural order differential mechanism, a printing mechanism having plural order type-carrying members supporting type, means normally positioning said type-carrying members in a given position dur- .ing a printing operation in the orders in which the diii'erential mechanism is not moved, a travelinglpaper carriage, and means controlled by lumnar positions of said carriage to cause said type-carrying members to be positioned during a printing operation in a diierent position than normal in the orders in which the differential mechanism is not released. l

4. A calculating machine having a plurality of diierentially movable actuator racks, a plurality of type segments carrying types adapted for normal printing operations and other types for special operations, connections between said type segments and racks permitting a limited relative movement between said segments and racks, aI

traveling paper carriage, and means controlled by said paper carriage for controlling said type segments in their limited movement in the orders in which the actuator racks are not moved during a printing operation whereby said type segments may be positioned to print characters other than normal.

5. A calculating machine having a plurality of actuators movable to differential positions during operation of the machine, type segments carrying a plurality of types including a zero and a special character type, connections between said type segments and actuators enabling said type segments to move a limited amount relative to said actuators during a machine operation to enable the type segments in the orders in which actuators are not moved during a machine operation to move to position to print zeros in said orders, latching mechanism for preventing said relative movement of said type segments, a paper carriage, and means under the control of said paper carriage acting in predetermined columnar positions of said carriage to move said latching mechanism to latching position in the orders in which the actuators are not released during an operation of the machine to thereby cause the type segments in said orders to be positioned to print special characters instead of zeros.

6. A calculating machine having a plural order diierential mechanism, a printing mechanism having plural order type-carrying members controlled by said diierential mechanism and supporting types including a zero type and a special character type, said type-carrying members being normally conditioned to print zeros during a printing operation in the orders in which the differential mechanism is not moved during a machine operation, a register, and means under the control of said register for positioning th/e typecarrying members in the orders in which the differential mechanism is not moved during a machine operation to print special characters in said orders instead of zeros. Y

'7. A calculating machine having a plural order diierential mechanism, a printing mechanism having plural order type-carrying members controlled by said diierential mechanism and Asup-` porting types including a zero and a special character type, said type-carrying members being normally conditioned to print zeros in the orders in which the dierential mechanism is not moved during a machine operation, a register having a plurality of pinions of different orders, and means under the control of said register pinions for causing the type-carrying members in the orders in which the register pinions are in zero position at the time a printing operation occurs to be positioned `to print specialcharacters in said orders instead of zeros.

8. A calculating machine having a plural order differential mechanism, a, printing mechanism having plural order type-carrying members controlled by said diierential mechanism and supporting types including a aero and a special char-f acter type, said type-carrying members being normally positioned to print special characters, means normally operating during a machine operation to cause said type-carrying members to loe moved to positions to print zeros in the orders in which the diierential mechanism is not moved during said machine operation, a register having a plurality of pinions oi did'erent orders, and means under the control oi said register for preventing movement of the type-carrying members in the orders in which the dierential mechanism is not moved during a machine operation to thereby cause special characters to be printed in said orders instead of zeros.

9. A calculating machine having a plural order differential mechanism, a printing mechanism having plural order type-carrying members controlled by said differential mechanism and sup porting types including a zero and a special chan acter type, said type-carrying members being normally positioned to print special characters,

` means normally causing said type-carg menibers to be moved during a machine operation to positions tc print zeros in the orders in which the diderential mechanism is not moved during said machine operation, a register having a plurality of pinions oi diderent orders, and asso ciated with said type-carrying members including feeling mechanism for said register pinions act-i ing to prevent-movement oi said type-carrying members in the orders in which. the register pin= ions are in zero position to thereby cause special characters to be prmted said orders instead of zeros lo. il calculating maclline having a plurality of actuators movable to diderential positions duru ing operation oi tine machine, type segments cone trolled by said actuators and carrying a plurality oi types including a zero a special chmacter type, connections between said type segments and actuators enabling said type segments to move a limited amount relative to said actuators during a machine operation whereby tile type segments in the orders in which actuators me not moved during a maclime operation will be positioned to print zeros in said orders, latcliing me anism for preventing said relative movement said type segments, a register liar/'ing a plurality oi register pinions, and means under the cons trol o said register pinions for moving said lamieing mechanism to latcliing position to thereby cause the type segments the orders in which the register pinions are at zero to loe latclied against movement to position tliem to print special characters instead oi zeros.

n calculating machine leaving a plural order diiierential mechanism, a printing mechanism llaving plural order type-carrying memloers controlled by said diderent-ial mechanism and supporting a plurality ci types including a aero and a special character type, said type-carrying members losing normally conditioned to print zeros tire orders in which. the dierential mechanism is not moved during a machine operation, a register, a travel ing paper carriage, and means under the joint control ci said register and paper carriage causing w76. type-carrying members in the orders in which the diierential mechanism is not moved during a machine operation to be positioned to print special characters in said orders instead oi zeros.

l2. A calculating machine having a plural order dinerential mechanism, aprinting mechanism having plural order type-carrying members con= trolled by said diderential mechanism and supporting a plurality oi types including a zero and a special character type, said type carrying members being normally positioned to print zeros in the orders in which diderential mechanism is not moved during a machine operation, a register having a plurality of pinions, a traveling paper ...si e, and means under the joint-control of said paper carriage and said register pinions causing said type-carrying members in the orders in which the register pinions are in zero position to be positioned to print special characters in said orders instead of zeros.

i3. A calculating machine having a plural. order diierential mechanism, a printing mechanism having plural order type-carrying members con= trolled by said differential mechanism and supporting types including a zero and a special char acter type, said type-carrying members normally positioned to print zeros in the orders in which the differential mechanism is not released during an operation or the machine, a traveling paper carriage, a register having a plurality of pinions of orders corresponding to said dierential mechanism, and means actuated by said paper carriage and controlled by said register pinions for causing said type-carrying mevro-1 loers to be positioned to print characters in the orders in which the register pinions are in their aero positions at the time tine machine operation taires place.

ld. l calculating machine naving a plurality oi actuators movable to differential positions d i"- ing operation or the machine, type segments car- Wing type including a zero and a special character type, connections between said actuators and type segments enabling said segments to move a limited amount relative to said actuators during a machine operation to enable the type segments in the orders in which. the actuator-s not rc= leased during a machine operation to move to po= sitions to print zeros, latcning mechanism lor latcning said type segments to said actuators o prevent said relative movement, a traveling paper carriage, a register having a plurality oi pinions ci orders corresponding to said actuators, and means actuated by said paper carriage in predetermined columna' positions thereof and conf1 trailed by said register pinions for moving latcliing mechanism to latcliing position orders in which the register pinions are at aero.

l5. A calcidating machine having a plurality of actuators movable to differential positions denI mg operation o the machine, type segments car= rying types including a zero and a special einer l acter type, connections between said type seg`= ments and actuators enabling said type segments to move a limited amount relative to said actua= tors during a machine operation to enable the type segments in the orders in' which actuators are not moved dining a machine operation to ce positioned to print zeros in said orders, a traveling paper carriage, a register having a plurality of pinions, latcl'ling mechanism for latching type segments to said actuators to prevent said relative movement, means actuated by said paper carriage in predeteed columnar positions thereof for moving said latcl'ling mechanism to latcliing position, and feeling mechanism controlled by said regismr pinions for preventing movement oi said latcloing mechanism to latclding position in the orders in which the register pinions are not at aero at the time said latching mechanism is actuated by said carriage.

it. A calculating machine having a plurality 

